Here is my Videoguide for this Achievement. You need a Kill with the DPV (Buggy) the F-35 and the BTR-90.
The Videos shows all 3 Vehicles on the Map "Gulf of Oman" because on this Map are all 3 Vehicles available.
DPV is available on both Side
F-35 is only available on US Side
BTR-90 is available on RU Side AND on the D Flag when RU has this! The BTR-90 on D is located on the Left Side of the Flag, right beside on a House.
At this D Point the US Side can get an BTR-90!
Question? Ask me in the Comments